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Oh, here's the story, had a nice 7TB raid (8 Drives + 1 hot spare), but the drives superblock info was lost and tragically, I cannot mount the RAID without ...
- 04-17-2011 #1Just Joined!
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BASH: Ordered Raid and Mount.Crypt - Fun Project
Oh, here's the story, had a nice 7TB raid (8 Drives + 1 hot spare), but the drives superblock info was lost and tragically, I cannot mount the RAID without knowing the order of said devices. I'm looking for a bash script that will try every possible combination of 8 drives, then try to mount the encrypted raid with mount.crypt. If mount.crypt returns an error, it obviously wasn't the correct drive combination, so the script will try the next combination on the list, if mount.crypt doesn't throw and error and instead prompts for a password, the bash script drops a "Hooray, you didn't lose 7TB of data!" victory test file. I'm slightly experienced with this type of scripting, but this one's over my head.
I will be using this command to recreate the array:
Just for laughs, here's the output of everything 'mdadm --examine' had to offer before the superblock tragedy:Code:mdadm --create --name=TARDIS --symlink=no --force /dev/md7 --assume-clean --level=5 --raid-devices=8 --layout=left-symmetric --verbose
The array I'm trying to recreate is TARDIS.Code:/dev/sda1: Magic : a92b4efc Version : 00.90.00 UUID : d2d81657:b473c537:89702771:449649de Creation Time : Sat Nov 6 00:14:29 2010 Raid Level : raid1 Used Dev Size : 976760768 (931.51 GiB 1000.20 GB) Array Size : 976760768 (931.51 GiB 1000.20 GB) Raid Devices : 2 Total Devices : 2 Preferred Minor : 0 Update Time : Sat Apr 16 21:00:36 2011 State : clean Active Devices : 2 Working Devices : 2 Failed Devices : 0 Spare Devices : 0 Checksum : d334dffc - correct Events : 242 Number Major Minor RaidDevice State this 0 8 1 0 active sync /dev/sda1 0 0 8 1 0 active sync /dev/sda1 1 1 8 17 1 active sync /dev/sdb1 /dev/sdb1: Magic : a92b4efc Version : 00.90.00 UUID : d2d81657:b473c537:89702771:449649de Creation Time : Sat Nov 6 00:14:29 2010 Raid Level : raid1 Used Dev Size : 976760768 (931.51 GiB 1000.20 GB) Array Size : 976760768 (931.51 GiB 1000.20 GB) Raid Devices : 2 Total Devices : 2 Preferred Minor : 0 Update Time : Sat Apr 16 21:00:36 2011 State : clean Active Devices : 2 Working Devices : 2 Failed Devices : 0 Spare Devices : 0 Checksum : d334e00e - correct Events : 242 Number Major Minor RaidDevice State this 1 8 17 1 active sync /dev/sdb1 0 0 8 1 0 active sync /dev/sda1 1 1 8 17 1 active sync /dev/sdb1 /dev/sdc1: Magic : a92b4efc Version : 1.2 Feature Map : 0x1 Array UUID : dd4f7de1:a4c3bf73:89a35d79:15aad3d5 Name : :TARDIS Creation Time : Fri Oct 22 23:26:28 2010 Raid Level : raid5 Raid Devices : 8 Avail Dev Size : 1953519730 (931.51 GiB 1000.20 GB) Array Size : 13674637312 (6520.58 GiB 7001.41 GB) Used Dev Size : 1953519616 (931.51 GiB 1000.20 GB) Data Offset : 272 sectors Super Offset : 8 sectors State : clean Device UUID : 9c202983:4475f095:e15b5d71:c0a94593 Internal Bitmap : 8 sectors from superblock Update Time : Sat Apr 16 15:31:51 2011 Checksum : 41427ec6 - correct Events : 236902 Layout : left-symmetric Chunk Size : 64K Array Slot : 10 (0, 1, 2, 3, failed, failed, failed, failed, 7, 5) Array State : uuuu_u_u 4 failed /dev/sdd1: Magic : a92b4efc Version : 1.2 Feature Map : 0x0 Array UUID : 0b878609:91044297:fd11a037:1a4a15db Name : :ExtraLife Creation Time : Fri Nov 26 23:46:36 2010 Raid Level : raid1 Raid Devices : 2 Avail Dev Size : 1953519730 (931.51 GiB 1000.20 GB) Array Size : 1953519730 (931.51 GiB 1000.20 GB) Data Offset : 272 sectors Super Offset : 8 sectors State : clean Device UUID : 2bf1edd3:e21c3a6d:a086e681:aaf7dafc Update Time : Sat Apr 16 16:24:42 2011 Checksum : 7dd40b62 - correct Events : 140 Array Slot : 1 (0, 1) Array State : uU /dev/sde1: Magic : a92b4efc Version : 1.2 Feature Map : 0x0 Array UUID : 0b878609:91044297:fd11a037:1a4a15db Name : :ExtraLife Creation Time : Fri Nov 26 23:46:36 2010 Raid Level : raid1 Raid Devices : 2 Avail Dev Size : 1953519730 (931.51 GiB 1000.20 GB) Array Size : 1953519730 (931.51 GiB 1000.20 GB) Data Offset : 272 sectors Super Offset : 8 sectors State : clean Device UUID : 7b46a8ab:b6b08bb2:f7a28fa6:2afb547b Update Time : Sat Apr 16 16:24:42 2011 Checksum : 3e03145c - correct Events : 140 Array Slot : 0 (0, 1) Array State : Uu /dev/sdf1: Magic : a92b4efc Version : 1.2 Feature Map : 0x1 Array UUID : dd4f7de1:a4c3bf73:89a35d79:15aad3d5 Name : :TARDIS Creation Time : Fri Oct 22 23:26:28 2010 Raid Level : raid5 Raid Devices : 8 Avail Dev Size : 1953519730 (931.51 GiB 1000.20 GB) Array Size : 13674637312 (6520.58 GiB 7001.41 GB) Used Dev Size : 1953519616 (931.51 GiB 1000.20 GB) Data Offset : 272 sectors Super Offset : 8 sectors State : clean Device UUID : ca9fcab5:8d4d3edf:758bb57e:bd1416dc Internal Bitmap : 8 sectors from superblock Update Time : Sat Apr 16 15:31:51 2011 Checksum : 135a70d6 - correct Events : 236920 Layout : left-symmetric Chunk Size : 64K Array Slot : 0 (0, 1, 2, 3, failed, failed, failed, failed, 7, 5, failed) Array State : Uuuu_u_u 5 failed /dev/sdg1: Magic : a92b4efc Version : 1.2 Feature Map : 0x1 Array UUID : dd4f7de1:a4c3bf73:89a35d79:15aad3d5 Name : :TARDIS Creation Time : Fri Oct 22 23:26:28 2010 Raid Level : raid5 Raid Devices : 8 Avail Dev Size : 1953519730 (931.51 GiB 1000.20 GB) Array Size : 13674637312 (6520.58 GiB 7001.41 GB) Used Dev Size : 1953519616 (931.51 GiB 1000.20 GB) Data Offset : 272 sectors Super Offset : 8 sectors State : active Device UUID : d1e493f5:cf70724b:d07099c0:0d30084f Internal Bitmap : 8 sectors from superblock Update Time : Sat Apr 16 15:31:51 2011 Checksum : 7429d9c3 - correct Events : 236920 Layout : left-symmetric Chunk Size : 64K Array Slot : 2 (0, 1, 2, failed, failed, failed, failed, failed, failed, 5, failed) Array State : uuU__u__ 7 failed /dev/sdh1: Magic : a92b4efc Version : 1.2 Feature Map : 0x1 Array UUID : dd4f7de1:a4c3bf73:89a35d79:15aad3d5 Name : :TARDIS Creation Time : Fri Oct 22 23:26:28 2010 Raid Level : raid5 Raid Devices : 8 Avail Dev Size : 1953519730 (931.51 GiB 1000.20 GB) Array Size : 13674637312 (6520.58 GiB 7001.41 GB) Used Dev Size : 1953519616 (931.51 GiB 1000.20 GB) Data Offset : 272 sectors Super Offset : 8 sectors State : active Device UUID : 229a3027:712eaa0c:bac7d25f:282a5ef1 Internal Bitmap : 8 sectors from superblock Update Time : Sat Apr 16 15:31:51 2011 Checksum : a88d9db9 - correct Events : 236920 Layout : left-symmetric Chunk Size : 64K Array Slot : 1 (0, 1, 2, failed, failed, failed, failed, failed, failed, 5, failed) Array State : uUu__u__ 7 failed /dev/sdi1: Magic : a92b4efc Version : 1.2 Feature Map : 0x1 Array UUID : dd4f7de1:a4c3bf73:89a35d79:15aad3d5 Name : :TARDIS Creation Time : Fri Oct 22 23:26:28 2010 Raid Level : raid5 Raid Devices : 8 Avail Dev Size : 1953519730 (931.51 GiB 1000.20 GB) Array Size : 13674637312 (6520.58 GiB 7001.41 GB) Used Dev Size : 1953519616 (931.51 GiB 1000.20 GB) Data Offset : 272 sectors Super Offset : 8 sectors State : active Device UUID : 71d51db6:40ba08d8:704a2bec:b9a0a430 Internal Bitmap : 8 sectors from superblock Update Time : Sat Apr 16 15:31:51 2011 Checksum : ce785e27 - correct Events : 236920 Layout : left-symmetric Chunk Size : 64K Array Slot : 9 (0, 1, 2, failed, failed, failed, failed, failed, failed, 5, failed) Array State : uuu__U__ 7 failed /dev/sdj1: Magic : a92b4efc Version : 1.2 Feature Map : 0x1 Array UUID : dd4f7de1:a4c3bf73:89a35d79:15aad3d5 Name : :TARDIS Creation Time : Fri Oct 22 23:26:28 2010 Raid Level : raid5 Raid Devices : 8 Avail Dev Size : 1953519730 (931.51 GiB 1000.20 GB) Array Size : 13674637312 (6520.58 GiB 7001.41 GB) Used Dev Size : 1953519616 (931.51 GiB 1000.20 GB) Data Offset : 272 sectors Super Offset : 8 sectors State : active Device UUID : f20e3125:6b891240:1676df1b:1393d8aa Internal Bitmap : 8 sectors from superblock Update Time : Sat Apr 16 15:31:51 2011 Checksum : 4f8184cd - correct Events : 236910 Layout : left-symmetric Chunk Size : 64K Array Slot : 5 (0, 1, 2, 3, failed, failed, failed, failed, 7, 5) Array State : uuuu_u_u 4 failed /dev/sdk1: Magic : a92b4efc Version : 1.2 Feature Map : 0x1 Array UUID : dd4f7de1:a4c3bf73:89a35d79:15aad3d5 Name : :TARDIS Creation Time : Fri Oct 22 23:26:28 2010 Raid Level : raid5 Raid Devices : 8 Avail Dev Size : 1953519730 (931.51 GiB 1000.20 GB) Array Size : 13674637312 (6520.58 GiB 7001.41 GB) Used Dev Size : 1953519616 (931.51 GiB 1000.20 GB) Data Offset : 272 sectors Super Offset : 8 sectors State : active Device UUID : 96fb1f69:dc19343b:cf44e95e:00bb12fb Internal Bitmap : 8 sectors from superblock Update Time : Sat Apr 16 12:54:18 2011 Checksum : 21dad3b0 - correct Events : 236920 Layout : left-symmetric Chunk Size : 64K Array Slot : 8 (0, 1, 2, 3, failed, 4, 6, failed, 7, 5) Array State : uuuuuuuU 2 failed /dev/sdl1: Magic : a92b4efc Version : 1.2 Feature Map : 0x1 Array UUID : dd4f7de1:a4c3bf73:89a35d79:15aad3d5 Name : :TARDIS Creation Time : Fri Oct 22 23:26:28 2010 Raid Level : raid5 Raid Devices : 8 Avail Dev Size : 1953519730 (931.51 GiB 1000.20 GB) Array Size : 13674637312 (6520.58 GiB 7001.41 GB) Used Dev Size : 1953519616 (931.51 GiB 1000.20 GB) Data Offset : 272 sectors Super Offset : 8 sectors State : active Device UUID : e7115f35:ee08b97a:6ec0f7e6:47442d84 Internal Bitmap : 8 sectors from superblock Update Time : Sat Apr 16 15:31:51 2011 Checksum : 3ec302d3 - correct Events : 236910 Layout : left-symmetric Chunk Size : 64K Array Slot : 6 (0, 1, 2, 3, failed, failed, failed, failed, 7, 5) Array State : uuuu_u_u 4 failed /dev/sdm1: Magic : a92b4efc Version : 1.2 Feature Map : 0x1 Array UUID : dd4f7de1:a4c3bf73:89a35d79:15aad3d5 Name : :TARDIS Creation Time : Fri Oct 22 23:26:28 2010 Raid Level : raid5 Raid Devices : 8 Avail Dev Size : 1953519730 (931.51 GiB 1000.20 GB) Array Size : 13674637312 (6520.58 GiB 7001.41 GB) Used Dev Size : 1953519616 (931.51 GiB 1000.20 GB) Data Offset : 272 sectors Super Offset : 8 sectors State : active Device UUID : 7f326855:fff44128:6430fd17:940956e1 Internal Bitmap : 8 sectors from superblock Update Time : Sat Apr 16 12:54:18 2011 Checksum : 9a881fdf - correct Events : 236920 Layout : left-symmetric Chunk Size : 64K Array Slot : 3 (0, 1, 2, 3, failed, 4, 6, failed, 7, 5) Array State : uuuUuuuu 2 failed
Any script (or pieces of script) or other help you can offer is incredibly appreciated. I'm in a total funk over losing all of the media I've collected over the years.......
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